The long-lasting variant of depression is called

A) major depressive disorder.
B) bipolar disorder.
C) cyclothymia.
D) persistent depressive disorder.

Persistent Depressive Disorder

A long-term form of depression, also known as dysthymia, characterized by a chronic low mood and other depressive symptoms lasting for at least two years.

Major Depressive Disorder

A clinical condition characterized by at least two weeks of persistent sadness, loss of interest in activities, and other emotional, physical, and cognitive impairments.

Long-lasting

Having or characterized by a duration that extends over a long period of time.